This issue seemed to appear a few days ago where images uploaded to the forum are not displaying. Oddly enough, and without intervention by me or the poster, they suddenly start showing, then disappear again. It is also random, affecting some posts but not others.
See here for an example:
Is this a ‘Sidekiq’ issue? Disclaimer: I don’t really know what Sidekiq is, but often see it mentioned in posts when there are image issues.
If this is likely a Sidekiq issue please let me know which tabs you’d like to see and I’ll post some screenshots.